Barb-wire machine



(No Model.) 4 Sheets Sheet 1. S. THOMPSON.

BARB WIRE MACHINE.

Patented Sept. 30, 18821.

...Irina-...neig

4 Sheets-Sheet 2, s. THQMPSON. BARE WIRE MACHINE.

Patented Sept. 30, 1884.

(No Model.)

(No Mdel.)

4 Sheets-Sheet 3. S. THOMPSON.

BARB WIM. MACHINE.

Patented Sept. 30, 1884.

:ILE

[n r@ nia 7* K Huw-f' N. PETERS. Pham-Lmmgnpher. wmngmn. D. c.

(No Modem 4 sheets-sheet 4, 4

S.'I'[MPS01\T.`

BARB WIRE MACHINE.

Patented Sept. 30, 1884.

INVENTR WITNESSES I ATTORNEY State of Iowa, have invented new and useful clear, and exact description thereof, reference such as are ordinarily used for two-strand the cutting-ott` knife and its operating-lever.

' section on line e c of Fig. l2.

- B. The brackets C C are secured tothe front cured, alternately, to one of the strands.

'ments of parts, as hereinafter more fully debarbs.

barbs. Fig. 7 is a detached perspective of Fig. 12 is a detached elevation of the frictionesta@ lsAI-JMONV YTHOMPSON, or Mrinortnsfrnn, town.

MACHINE.

srnorruoerrotv forming part 0f Letters Parent No. 305,865, darse september'so, ieee.

Application tiled March 5, 188.4. (No model.)

To @ZZ whom it iii/tty concern:

Be it known that I, SALMON THOMPSON, of Manchester, in thecounty of Delawareand Improvements in Barb-fire Machines; and I do herehydeclare that the following is a lfull,

being had to the accompanying drawings,

which forni a part of this specification.

This invention relates to certain new and useful improvements in barb-wire machines,

wire, with barbs at regular intervals and se- The invention consists in the peculiar combinations and the. construction and arrangescribed, and then pointed out in the claims.

In the drawings, Figure l is a perspective view of the machine, looking at the rear end thereof. Fig. 2 is another perspective view, looking at the side of the machine.Y Fig. 3 is a plan ofthe table. Fig. 4 is a detached perspective view of the devices for forming the barbs upon the two main wires. Fig. 5 shows diagrams ilinstrating the operation of formi-ng the Fig. 6 is a detached elevation showing the devices for operating the knives which cut oft' the barhing-wires after the formation of the one of the knife-blocks which guide the wire to the knives, and hold it while being cut. Fig. S is a detail view ofthe friction-feed employed for feeding the wires. Fig. 9 is a detail showing the device lfor adjusting the frictionfeed of the barbing-wires. Fig. 10 is a detail showing the loose pivot-connection between Fig. 1l is a cross-section on line y y of Fig.` 3, showing the friction-feed for the barbing-wires.

feed for the main wires. Fig. 13 is a cross- A-is the frame of the machine, which snpport-s the operating parts. B is a table supported by the frame. C C, C G, and C" C are three sets of-brackets secured to the table end of the table, and have journaled between 'them two sets of feed-rolls, D D-one for each of the two main wires. The brackets C' C and GMC have each journaled between them one set of feed-rolls, D D and Dff D, for each of thetwo barbing-wires. These feed-rollsare upon opposite sides of the table, and one is nearer the rear of the machine than the other.

' The motion given to these feeding devices is intermittent, and is obtained from the main shaft-E in the following manner: A crank,G, is secured upon one end of the main shaft E.; 6o To this is adjustably secured one end of the pitnian F, the other end of which is secured to the loose friction-crank H, which is shownV in detail in Fig. S. rlhis crank is loosely secured within the rim g ofthe disk I, which latter issecur'ed upon the end oi' the shaft of the lower set of feed-rolls D D. Y l

A The loose crank H consists of two pieces, c f, tliepart-f of which is provided with a halfrounded recess, in which the half-rounded por- 7o tion ofthe crank-pin h is inserted. This crankpin 7L is secured to a plate, if, which is provided upon the opposite side, near its opposide end, with a wrist-pin,7t, and to which thehead ofthe pitman is secured. t' is a spring 7 5 bearing against the plate li.

In operation the revolutions of the crank GfL I impart motion to the pitman F, whichvibrates the loose crank H within the disk'l, and whenever the pitinan F pulls, the action o`f the 8o crunk-pin h wedges the two parts cf ot the crank H apart, causing said disk Ito revolve a small part of a revolution; but wheneverthe pitinan pushes, the action of the spring 'i prevents the parts efufrom being wedged apart, S 5 thus keeping the disk I quiescent. Thus the positive and continuous motion of the shaft E l is transformed into an intermittent frictionfeed. The feed for the feed-rolls D' D' and D D" is obtained in a similar manner, with this 9o exception, that the lower end of their respective pitmen F F are secured to levers J J, which are vibrated by means of cams K K, secured upon the shaft E. The upperends oi' these pitmen are adjustably secured to the wristpins, as shown in Fig. 9, thus getting the saine facility for adjusting the lengths ot'. stroke oi' the pitinan which is obtained in the oase of the pit-man F by its adjustable connection with the crank G.

L is a cam-wheel secured upon the shaft E, and shown-in detached 4perspective view in Fig. et. VFartof its peripheral face is V-shaped in cross-section, while the rest ofthe same" is IOO I am aware that cam-disks performing the same fun-ctionhave been used heretofore in this class of m achiney; but the oblique or cam grooves extended radially instead of across the periphery of the disk. By my construction the greatest power of the cam is at once 2 utilized and remains uniform, whereas, con-- structed as heretofore proposed with the cam extending radially across the disk, the power exerted at the beginning of its action is less than the powerv exerted at the completion thereof, consequently the power is not uniform,but varying. Another advantage lies in the cheapness of construction of the cam-disk, as 'the grooves can be milled in the periphery at a much less expenditure `of time and labor than they could radially on Ythe side of the same; and, again, having the periphery vA- shaped in cross-section for a part way involves much less expense than a groove cut in the side of the disk for the same purpose, as has also been proposed. f

The parts last described are so arranged that the cogs o of the pinion M can straddle the V-shaped face of the cam-disk L, and lock thereby the -pinion M in position, and by the engagement of the rollers or studs o into the oblique grooves l a rotary motion of the pinion Mis produced. The return-groove m reverses the motion of the pinion M for a small part of a revolution. Thus the continuous rotary motion of the cam-disk L is transformed into an intermittent rotary motion of the pinion M, which makes a little more than onehalf a revolution in one direction, and then reverses so much as to make 'its former revol-ution just one-half, while during its position of rest it isflrmly locked by the V -shaped face of the cam-disk.

Secured upon the shaft `mis another pinion, N,'which meshes with two pinions, /O O', which latter are secured upon the tubes P P. The pinions'O VO' are-half as large as the pinion N,

` so that one-half of a revolution of the pinio'n N gives a whole revolution to the pinions barbs are spaced upon the main wires.

OrO' and tubes P P'. The tubes -P P" are secured'to the top of the table B, aside of each other, in journals p p. They are centrally perforated their whole length, so that themain wires canv pass loosely through them. The tube P'is longer than the tube P, the difference representing the distance at which the The rear-ends ofthe tubesV are slightly rounded off and are provided with short pins or studs q q'.

Q Q aretwo blocks secured to the table B, near the rear ends of the tubes P P. Each of these blocks consists-of two corresponding plates superimposed upon each other. Upon the l the top vof the lower plate, and diagonally across it, is formed a groove through which the barbing-wire can loosely pass. Between the two plates, and secured in a proper recess therein, is a steel bar, R,which can be adjusted lengthwise by means of a set-screw, r. The inner corners of the blocks Q Q are cut away, as shown in Figs. 3 and 7. This cut-away portion forms a guideway for the verticallyreciprocating knives S S', which pass through proper slots, s s', in the table B. The knives S S' work in connection with the steel bars R to effect the cutting off of the barbing-wire, which passes obliquely through the blocks Q Q' land passes obliquely across the path of the knives.

In Fig. 6 the knives S S' are shown iu elevation. The knife S works from ahove,while the knife S works from below. vBoth are operated in a similar manner by the elbow-levers T T', which are pivoted beneath the table B,

their short arms being in loose engagement L scribed, imparts a reciprocating movement tol the knives.

In practice the main wires are fed tothe machine through proper guide-holes, which guide them between the feed-rollsD D. Then,y passing through the tubes P P',y they pass out at the rear ends of these tubes and are led to the twister. The barbing wires, of which there are also two, pass through proper guideholes between the feed-rolls DD"and through the blocks Q vQ',which lead these barbingwires toward the rear ends of the tubes P P. The position of these tubes is shown in Fig. 5, where No. l shows the position of tube P' and N o. 4 the position of tube P, before the beginning of the operation vof barbing.

The feed of 'the barbing-wires is so gaged that their ends will be pushed in and between the main wires and the studs q q sufficiently far to form one of the points of the barb. Upon the operation of the cam-disk L and its connection the tubes P P will then be revolved a little more than one revolution, showing-the formation of the barb by ldiagram N o. 2. Then, upon the tubes reversing enough to make their revolution-just one turn, the barb is freed from the studs q q'. Now the opera- .tion of the knives severs the barb from the barbing-wire at a distance from the main wire long enough to form the other point of the barb. Owing to the Obliquity of the path'in lw-hich the barbing-wire lies across the path of the-knife,the cutting off will produce a sharp point upon both of the severed ends, thefremaining one forming one of the-points of the next succeeding barb. As the-tubes Pl P re- IOO volve both in the same direction, it is of course necessary, in order to form the barbs alike, to pass one of the barbing-wires above and the other below the main wire, and for that reason the knives S and S work in opposite directions.

It will be seen that by the operations of the cani-disk L, in combination with the pinion M, a very powerful and positive motion is ob` tained, which allows to form the coil of the barb very close and tight upon the main wire, so that the necessity of more than one coil to steady the Abarb is obviated.

All the parts, Where desired, are provided with proper adjustments, and the grip of the feed-rolls may be, as usual, adjusted'by springs and set-screws which operate upon the .movable boxes of the upper feed-rolls.

One great advantage of my machine is that I can run it at very high speed without the least detriment to the work or to the operating parts ofthe machine. This is owing, in alarge measure, to the devices-employed for obtaining the required intermittent motions, especially of the devices for forming the barbs. The main shaft and the parts secured to it are continuously revolving, and the momentum acquired by the intermittent parts under high speed is too small to Vbe of any consequence.

As the machine, besides its adaptability to run at very high speed, also forms two barbs simultaneously, it is'obvious that the machine must have a large capacity for work, and as a matter of fact the latter depends solely upon the ability ci' the twister to take care of the work.

The advantage of the friction-feed employed for the diiferent wires lies in the fact that itis practically positive, while at the same time it admits oi` a very close adjustment and is free from disagreeable noise, even at the highest rates of speed.

Tubes I P for guiding the main wiresto the barbing devices have been employed heretofore in similar machines of this class; but one of these tubes was always placed convergent to the other, whereas in my machine they are placed parallel to each other with the necessary distance betweenthem to form the barbs. This Lconstruction allows me to make the two barbing devices simply duplicates of each oth.-

er, while at the same time it facilitates and imlproves the operation of the twister.

That I claim as my invention isl. In a barb-wire machine, the combination of the following devices: intermitting feeding devices for two main wires, intermitting feed-l ing devices for two barbing-wires, and intermittingly and simultaneously operating devices for forming two barbs-one upon each main wire-substantially as set forth.

2. In a barb-Wire machine,the combination of an intermittent feeding device for the two main wires, with two barb-forming devicesone for each main wire-operated simultaneously, and so located in regard to each other that they produce the spacing of the barbs, substantially as set forth.

8. In a machine for barbing wire, the combination of the main shaft, the main-wire feeding mechanism, the barbfwire feeding mechanism, and the shearing and barb-forming mechanism thereof,with the crank G, cams K K, and Athe canrdisk L, all secured to said main shaft, and operating on said mechanism, respectively, substantially as described.

, 4. In a barbwvire machine, and in combination with the Wireieeding devices thereof, the loose crank H, disk I, provided with rim g, cap f, loose wrist lz. h h, spring z', and pitman F, substantially as and for the purpose described. Y

5. In a barb-wire machine, the combination of the disk L, provided with striker-pins t, retractlng guide-bars u, elbow-levers T T', and

knives S S', substantially as and for the purpose described.

6. In abarbwire machine, the combination of the disk L, provided on its periphery with the traversing cam grooves Z -and reverse groove m, of the pinion M, adapted to engage with said grooves, and thereby receive a uniform rotary motion in one direction and a reversal in an opposite direction,and of intermediate mechanism, for communicating said inotion to atube or tubes, P P', substantially as set-forth. 7. In a barb-wire machine, the combination of the disk L, 'SJ-shaped on part of its peripheral face, and provided with the traversing cam-grooves Z m on the rest of the same,of the pinion M, provided with conical roller-teeth o, and of intervening positive mechanism,as pinions N 0 O, for communicating its motion to the tubes P P', substantially as set forth.

8. In a barb-wire machine, the combination of the disk L, having its peripheral face partly ij-shaped and partly provided with the traversing camfgrooves 6 m, of the pinion M, provided with conical rubber teeth o, of the shaft a, and pinion N, and of the tubes I?. P', provided with pinions O O', and eccentric pins q q', substantially as and for the purposes set IOO IIO

and of the pinion M, engaging with the face of the disk L, and imparting its motion to the tubes P IJ', substantially as and for the purpose described.

10. In a barb-wire machine, the combination of the two rotary tubes l? P', provided with eccentric pins g Q, and placed parallel to each other and project-ing at different lengths, substantially as and for the purposes described.

Witnesses: SALMON THOMPSON.

H. S. Srnnoun, E. SoULLY. 

